Charles a



(No Model.)

C. A. CASE. STEAM ROAD ROLLER.

No. 408,372. Patented Aug. 6, 1889.

UNITED STATES PATENT OFFICE.

CHARLES A. CASE, OF NElV YORK, N. Y.

STEAM ROAD-ROLLER.

SPEOIFIGATION forming part of Letters Patent No. 408,372, dated August 6, 1889.

Application filed Int 4, 1888- Serial No. 276,055- (No model.)

To all whom it may concern: Be it known that 1, CHARLES A. CASE, citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a new and Improved Stea1nRoller, of which the following is a specification.

This improvement relates to rollers used in the construction of roads made of asphaltum or bituminous rock and gravel and other like substances, which are packed down by pressure after being spread; and it consists of a certain new and improved construction of the shown at D. The frame 0 is attached near its front end to the axle of the roller E and at its rear end to the supporting-frame F, attached by axle to guide-roller G.

H is a pair of steam-engine cylinders set side by side in front of the boiler and connected by cranks to the shaft H, held in bearings h upon the frame 0. The outer end of shaft H is provided with a miter-wheel I, which engages with a miter-wheel 1 upon a horizontal shaft J, having at its outer end a miter-wheel K, as shown in Fig. 1, which transmits motion to roller E by engaging with beveled gearwheel K, secured to the head of said roller.

L is an oil-tank, from which the oil is supplied to the perforated coil of pipeB by feed pipe L, the flow being regulated by a cockl therein.

M is a tank, from which water is drawn through pipes N and N by means of one ofa pair of pumps 0, secured to the side of the boiler, and forced up through pipe P into trap Q on top of tank M, while the other pump forces the water discharged from ,thel cylinder or steering-engine R at the rear of the machine through the pipes T and R into the boiler A. The water used in operating the engine or cylinder R is forced therein through pipe '1 by a piston S in trap Q, govtiller U to move to the right or left, turning the guide-roller G, thereby changing the direction of the machine.

W is a lever provided with latch W',which engages with rack X, by means of which the pressure of the water used in the engine or cylinder R is regulated.

The levers for starting and stopping the machine are of such well-known construction that it is not deemed necessary to describe same.

The manner of using my invention is as follows: After the, asphaltum is spread the machinev is passed forward and backward over the pavement, and, owing to-the turning up of the frame at the forward end, can be run closely to the curb and presses the pavement as firmly at that point as at any other,

and, further, by means of an auxiliary engine for steering, the engineer is enabled to handle the machine to a better ad vantage and Y with more certainty.

It will be readily seen that, if desired, as

engine by which the guide-roller is controlled can be operated by air or steam, and by the use of oil as a fuel injury to the freshly-laid pavement by-hotcoals or ashes dropping from i the fire-box is avoided.

What I claim is- 1 95. I 1. In a road-roller, the combination of the boiler A, frame 0, roller E, water-tank M, oil-f tank L, and guide-roller G, in supporting-' frame F'operatively connected therewith, sub 7 v I00 the stantially as shown and described. 2. In a road-roller, the combination of boiler A, frame 0, roller E, tanks M and L,

gnide-roller G, and steering engine or cylin- 4. In ar0ad-ro1ler,the combination of frame 10 der R, operatively connected therewith, sub- 0, having its end turned up at I), engine or stantially as set forth. cylinder R, guide-roller G, supporting-frame 3.: In a. road-roller, the combination of the F, tiller U, and frame V, as shown and de- I trap Q, provided with a piston S, tank M, enscribed.

' gine or cylinder R, pumps 0,0perative'lyc0n- CHARLES A. CASE.

nected with the trap Q and cylinder R by \Vitnesss: pipes '1, 1, N, N, and R, when arranged sub- II. \VEIGHTMAN, stantially ns'shown and described. F. \V. OROCKER. 

